Water Intake

Anyone else having trouble drinking enough water? I'm so nervous because I know it's so important but I'm not usually a thirsty person to begin with. I'm like forcing water. Sometimes I have some juice. Last ultrasound (9/18/18) showed the amniotic fluid was normal. But I find it hard to even make it to the 8 glasses a day. I think for pregnancy you're supposed to drink 15. I don't know, but anyone have any water drinking tips? Or at least in the same boat?